I echoe Dominique’s concern If you have people entering you site from Israel be concerned. The big time scrapers reside in that country, the names can be found on the 888.com scraper thread.
Blocking the IP will provide a partial solution. Be weary of any spider showing up in your stats. Also if possible record the IP deriving from Israel. I have a few and are a direct match for the scrapers names I have listed on the 888.com scraper thread.
The spider used I am still trying to firgure out. greek39